An irrefutable proof that such single-celled primaeval animals really existed as the direct ancestors of Man, is furnished according to the fundamental… — Ernst Haeckel Copy Share Image
The succession of individuals, connected by reproduction and belonging to a species, makes it possible for the specific form itself to last… — Ernst Haeckel Copy Share Image
Where faith commences, science ends. Both these arts of the human mind must be strictly kept apart from each other. Faith has… — Ernst Haeckel Copy Share Image
By ecology we understand the total science of the connections of the organism to the surrounding external world. — Ernst Haeckel Copy Share Image
Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action… — Ernst Haeckel Copy Share Image
Phylogeny and ontogeny are, therefore, the two coordinated branches of morphology. Phylogeny is the developmental history [Entwickelungsgeschichte] of the abstract, genealogical individual;… — Ernst Haeckel Copy Share Image
“In consequence of Darwin 's reformed Theory of Descent, we are now in a position to establish scientifically the groundwork of a… — Ernst Haeckel Copy Share Image
“The ancestors of the higher animals must be regarded as one-celled beings, similar to the Amoebae which at the present day occur… — Ernst Haeckel Copy Share Image
It is, however, a most astonishing but incontestable fact, that the history of the evolution of man as yet constitutes no part… — Ernst Haeckel Copy Share Image
Nothing is constant but change! All existence is a perpetual flux of "being and becoming!" That is the broad lesson of the… — Ernst Haeckel Copy Share Image
We are compelled by reflection to recognize that God is not to be placed against the material world [as in Christianity], but must be… — Ernst Haeckel Copy Share Image
Civilization and the life of nations are governed by the same laws as prevail throughout nature and organic life. — Ernst Haeckel Copy Share Image
An irrefutable proof that such single-celled primaeval animals really existed as the direct ancestors of Man, is furnished according to the fundamental law of… — Ernst Haeckel Copy Share Image
The succession of individuals, connected by reproduction and belonging to a species, makes it possible for the specific form itself to last for ages.… — Ernst Haeckel Copy Share Image
There is no doubt that the course and character of the feared 'European war'... will become the first world war in the full sense… — Ernst Haeckel Copy Share Image
Man is not distinguished from [the animals] by a special kind of soul, or by any peculiar and exclusive psychic function, but only by… — Ernst Haeckel Copy Share Image
Where faith commences, science ends. Both these arts of the human mind must be strictly kept apart from each other. Faith has its origin… — Ernst Haeckel Copy Share Image
The nucleus has to take care of the inheritance of the heritable characters, while the surrounding cytoplasm is concerned with accommodation or adaptation to… — Ernst Haeckel Copy Share Image
The whole of organic nature on our planet exists only by a relentless war of all against all. ... The raging war of interests… — Ernst Haeckel Copy Share Image
By ecology we understand the total science of the connections of the organism to the surrounding external world. — Ernst Haeckel Copy Share Image
Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the… — Ernst Haeckel Copy Share Image
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